\existentialConstants {
  int x1, x2, x3, x4;
}
\problem {
(\exists int x1;(
(((-5*x1) + (-4*x2) + 5*x3 + 3*x4 >= 0 & 3*x2 + 1*x3 + 1*x4 < -4) | ((4*x1 + (-3*x2) + (-4*x3) > 0 | (-1*x1) + (-1*x3) + 1*x4 < -3) & ((-1*x3) <= -2 | 5*x3 + 4*x4 > 0)))
))
}
